1 /*
  2  * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
  3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  4  *
  5  * This code is free software; you can redistribute it and/or modify it
  6  * under the terms of the GNU General Public License version 2 only, as
  7  * published by the Free Software Foundation.
  8  *
  9  * This code is distributed in the hope that it will be useful, but WITHOUT
 10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 12  * version 2 for more details (a copy is included in the LICENSE file that
 13  * accompanied this code).
 14  *
 15  * You should have received a copy of the GNU General Public License version
 16  * 2 along with this work; if not, write to the Free Software Foundation,
 17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 18  *
 19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 20  * or visit www.oracle.com if you need additional information or have any
 21  * questions.
 22  *
 23  */
 24 
 25 /*
 26  * @test id=static
 27  * @requires vm.cds.write.archived.java.heap
 28  * @library /test/jdk/lib/testlibrary /test/lib
 29  * @build StringConcatStress2
 30  * @run driver jdk.test.lib.helpers.ClassFileInstaller -jar app.jar StringConcatStress2App
 31  * @run driver StringConcatStress2 STATIC
 32  */
 33 
 34 /*
 35  * @test id=leyden
 36  * @requires vm.cds.write.archived.java.heap
 37  * @library /test/jdk/lib/testlibrary /test/lib
 38  * @build StringConcatStress2
 39  * @run driver jdk.test.lib.helpers.ClassFileInstaller -jar app.jar StringConcatStress2App
 40  * @run driver StringConcatStress2 LEYDEN
 41  */
 42 
 43 import jdk.test.lib.cds.CDSAppTester;
 44 import jdk.test.lib.helpers.ClassFileInstaller;
 45 import jdk.test.lib.process.OutputAnalyzer;
 46 
 47 public class StringConcatStress2 {
 48     static final String appJar = ClassFileInstaller.getJarPath("app.jar");
 49     static final String mainClass = "StringConcatStress2App";
 50 
 51     public static void main(String[] args) throws Exception {
 52         Tester t = new Tester();
 53         t.run(args);
 54     }
 55 
 56     static class Tester extends CDSAppTester {
 57         public Tester() {
 58             super(mainClass);
 59         }
 60 
 61         @Override
 62         public String classpath(RunMode runMode) {
 63             return appJar;
 64         }
 65 
 66         public String[] vmArgs(RunMode runMode) {
 67             return new String[] {
 68                 "-XX:+PreloadSharedClasses",
 69                 "-XX:+ArchiveInvokeDynamic"
 70             };
 71         }
 72 
 73         @Override
 74         public String[] appCommandLine(RunMode runMode) {
 75             return new String[] {
 76                 mainClass
 77             };
 78         }
 79 
 80         @Override
 81         public void checkExecution(OutputAnalyzer out, RunMode runMode) {
 82             if (!runMode.isStaticDump()) {
 83                 out.shouldContain("Result = 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1END");
 84             }
 85         }
 86     }
 87 }
 88 
 89 class StringConcatStress2App {
 90     public static void main(String args[]) {
 91         System.out.println("Result = " + concat23String() + "END");
 92     }
 93 
 94     // Test the handling of java.lang.invoke.StringConcat.highArityThreshold (default value is 20)
 95     // in java.lang.invoke.StringConcatFactory. If we have more than this number of concats, a
 96     // different form of CallSite is generated by StringConcatFactory that will uses
 97     // different kinds of hidden classes than usual.
 98     static String concat23String() {
 99         return f0 + ","+ f1 + ","+ f2 + ","+ f3 + ","+ f4 + ","+ f5 + ","+ f6 + ","+ f7 + ","+ f8 + ","+ f9 + ","
100                 + f10 + ","+ f11 + ","+ f12 + ","+ f13 + ","+ f14 + ","+ f15 + ","+ f16 + ","+ f17 + ","+ f18 + ","+ f19 + ","
101                 + f20 + ","+ f21 + ","+ f22;
102     }
103 
104     private static String
105             f0="1", f1="1", f2="1", f3="1", f4="1", f5="1", f6="1", f7="1", f8="1", f9="1",
106             f10="1", f11="1", f12="1", f13="1", f14="1", f15="1", f16="1", f17="1", f18="1", f19="1",
107             f20="1", f21="1", f22="1", f23="1", f24="1", f25="1", f26="1", f27="1", f28="1", f29="1",
108             f30="1", f31="1", f32="1", f33="1", f34="1", f35="1", f36="1", f37="1", f38="1", f39="1",
109             f40="1", f41="1", f42="1", f43="1", f44="1", f45="1", f46="1", f47="1", f48="1", f49="1",
110             f50="1", f51="1", f52="1", f53="1", f54="1", f55="1", f56="1", f57="1", f58="1", f59="1",
111             f60="1", f61="1", f62="1", f63="1", f64="1", f65="1", f66="1", f67="1", f68="1", f69="1",
112             f70="1", f71="1", f72="1", f73="1", f74="1", f75="1", f76="1", f77="1", f78="1", f79="1",
113             f80="1", f81="1", f82="1", f83="1", f84="1", f85="1", f86="1", f87="1", f88="1", f89="1",
114             f90="1", f91="1", f92="1", f93="1", f94="1", f95="1", f96="1", f97="1", f98="1", f99="1",
115             f100="1",f101="1",f102="1",f103="1",f104="1",f105="1",f106="1",f107="1",f108="1",f109="1",
116             f110="1",f111="1",f112="1",f113="1",f114="1",f115="1",f116="1",f117="1",f118="1",f119="1",
117             f120="1",f121="1",f122="1";
118 
119 }